Plant-mediated biosynthesis of zinc oxide nanoparticles from Delonix Elata: A promising photocatalyst for crystal violet degradation

Zinc oxide nanoparticles (ZnO) were biosynthesized in this study utilizing Delonix Elata leaves extract, and their size, phase study, and morphology were investigated using various techniques. Moreover, the photocatalytic effects of ZnO nanoparticles on the degradation of Crystal violet (CV) were assessed, and its outstanding capability as photocatalysis under UV light was noticed throughout the investigation. This is a 100% environmentally friendly method that does not employ any harmful or hazardous solvents. The biosynthesized ZnO nanoparticles were characterized using FETEM, XRD, FTIR, UV–vis, XPS and Raman spectroscopy. Crystal violet (CV) dye degradation was utilized to examine the catalytic activity of the synthesized nanoparticles. The photocatalytic efficacy against the Crystal violet (CV) dye was followed by first-order reaction kinetics, with a maximal degradation efficiency of 86 %. As a result, the biosynthesized ZnO nanoparticles synthesized from Delonix Elata leaves extract to have the potential to be used in photocatalytic applications.